package com.itheima.mapper;

import com.itheima.pojo.Emp;
import org.apache.ibatis.annotations.*;
import org.springframework.stereotype.Service;

import java.net.Inet4Address;
import java.time.LocalDate;
import java.util.List;
import java.util.Map;

/*员工信息*/
@Mapper
public interface EmpMapper {

    //-----------------------------------------------原始分页查询-----------------------------------------------------

    /*//查询总记录数
    @Select("select count(*) from emp e left join dept d on e.dept_id = d.id")
    public Long count();

    //分页查询
    @Select("select e.*,d.name deptName from emp e left join dept d on e.dept_id = d.id order by e.update_time desc limit #{start},#{pageSize}")
    public List<Emp> list(Integer start, Integer pageSize);*/


    //-----------------------------------------------PageHelper分页查询-----------------------------------------------------
    //@Select("select e.*,d.name deptName from emp e left outer join dept d on e.dept_id = d.id order by e.update_time desc")
    public List<Emp> list(String name, Integer gender, LocalDate begin, LocalDate end);

    //插入员工基本信息
    @Options(useGeneratedKeys = true,keyProperty = "id")//获取到生成的主键--主键返回
    @Insert("insert into emp(username, name, gender, phone, job, salary, image, entry_date, dept_id, create_time, update_time) " +
            "values (#{username},#{name},#{gender},#{phone},#{job},#{salary},#{image},#{entryDate},#{deptId},#{createTime},#{updateTime})")
    void insert(Emp emp);

    //删除员工基本信息
    void deleteByIds(List<Integer> ids);

    //根据ID查询员工和工作经历信息
    Emp getById(Integer id);

    //根据ID更新员工的基本信息
    void updateById(Emp emp);

    //统计员工职位人数
    @MapKey("pos")
    List<Map<String,Object>> countEmpJobData();

    //统计员工性别
    @MapKey("name")
    List<Map<String,Object>> countEmpGender();

    //查询全部员工
    @Select("select * from emp where job = 1")
    List<Emp> getAllEmp();

    //根据用户名和密码查询员工信息
    @Select("select id,username,name from emp where username = #{username} and password = #{password}")
    Emp selectByUsernameAndPassword(Emp emp);
}
